With Drupal 10.4.1 (installed yesterday) I couldn't find Drush. So I found the vendor folder and installed it: composer require drush/drush
Then found drush in the application root, next to the document root
~/public_html/docroot $ ls
composer.json composer.lock vendor web
application@server ~/public_html/docroot/web $ ../vendor/bin/drush --version
Drush Commandline Tool 13.3.3.0
applicationj@server ~/public_html/docroot/web $ ../vendor/bin/drush uli
Then check it works :
application@server ~/public_html/docroot/web $ ../vendor/bin/drush status
Drupal version : 10.4.1